Why did the bridge go to therapy? It had too many spans of anxiety.
Why did the bridge go to therapy? It had too many spans of anxiety.
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over WATER CHARLES RIVER
.64 KM E OF N HARVARD ST
Parametric wireframe generated from real NBI dimensions. Drag to rotate, scroll to zoom.
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This bridge has a Poor overall condition rating of 4 out of 9. This bridge is classified as being in poor condition, meaning one or more structural components have significant deterioration. Poor condition does not mean the bridge is unsafe to drive on, but it does mean repairs or replacement may be needed.
The bridge carries 33,400 vehicles per day and is 101 years old.
Its sufficiency rating of 48.6 places it below the national average of 63.6.
The NBI records a navigation clearance of 16 feet — the minimum vertical space below the bridge deck. The total height of the bridge structure (including towers, railings, and superstructure) may be higher.
For travelers with bridge anxiety
This bridge may cause some awareness for travelers with bridge anxiety, but has manageable characteristics.
This bridge is 210 feet long — a short crossing, about 10-15 seconds.
An arch bridge design with some openness to the surroundings.
About 16 feet above ground — standard overpass height.
About 33,400 vehicles cross daily — moderate traffic, some congestion possible.
The deck is 61 feet wide with 3-4 lanes — standard width.
This bridge crosses over water. Focus on the road ahead — the water is far below.
This comfort score is designed to help individuals with bridge anxiety plan their travel. All bridges in the National Bridge Inventory are regularly inspected and deemed safe for travel. This is not medical advice — if you experience severe anxiety, please consult a healthcare professional.
Year Built
1925
101 years old
Structure Type
Concrete Arch (Deck)
Total Length
210 ft
64.0 m
Deck Width
61 ft
18.7 m
Spans
3
sections between supports
Max Span
75 ft
longest unsupported section (22.9 m)
Traffic Lanes
4 lanes
One-way traffic
Clearance Below
16 ft
navigation clearance under deck
Clearance height compared to familiar objects
Height shown is the navigation clearance below the bridge deck. The total height of the bridge structure (including towers and superstructure) may be higher.
Daily Traffic
33,400vehicles/day
42.36124°N, 71.11675°W
Concrete Arch (Deck)
A concrete arch bridge uses a curved concrete structure to transfer loads through compression. Concrete arches are durable and can be very aesthetically pleasing.
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Data from the National Bridge Inventory (NBI), maintained by the Federal Highway Administration (FHWA).
Data year: 2025. Conditions may have changed since the last inspection.
This information is provided for educational and informational purposes only. It should not be used as the sole basis for any decisions related to bridge safety or transportation planning. Always consult official sources and local authorities for the most current data.